"Today Was a Fairytale" is a song by American singer Taylor Swift, released for the 2010 film Valentine's Day soundtrack. The song was released digitally on iTunes on January 19, 2010. The song is scheduled to be released physically in the United Kingdom in the future. Swift performed "Today Was a Fairytale" at the 2010 Grammy Awards.

Chart performance."Today Was a Fairytale" debuted at #2 on the U.S. Billboard Hot 100 chart for the week of February 6, 2010. The debut was a career best for Swift, beating "Fearless" which debuted at #9. It also debuted at #52 on U.S. Hot Country Songs the same week based on unsolicited airplay. The song sold 325,000 downloads, breaking the record for best first-week download sales by a female artist previously held by the Britney Spears track "Womanizer" which sold 286,000 in its first week. In its second chart week, the song dropped to #22 replacing another song on which Swift appears, "Two Is Better Than One", at that position. It is Swift's sixth Top 10 single on the Hot 100 and her 23rd top forty single.

On the issue dated February 20, 2010, "Today Was a Fairytale" debuted at #1 on the Canadian Hot 100, making it Swift's first number-one hit in Canada and the second song in the chart's history to debut at #1, after Eminem's "Crack a Bottle" did so in February 2009. The song ended Kesha's 9 week reign with "TiK ToK" in Canada.